power 275 lumens 5 modes 1 maxbright led high low and 4 ultrabright led high low flash beam distance 1 led high120m low68m 4 led high43m low26m flash43m battery burn time 1 led high72h 1 hour regulated low96h 9h regulated 4 led high100h 8 5h regulated low150h 14h regulated flash200h 20h regulated battery type 4x aa alkaline supplied also accepts lithium or ni mh rechargeable weight 279 g with batteries ipx7 waterproof 1m immersio